/*
 * graph2D
 * Copyright (c) 2011 Shun Moriya <shun@mnu.sakura.ne.jp>
 *
 * The MIT License
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "textureContainer.h"
#include "texture.h"

namespace Graph2D
{
	////////////////////////////////////////////////////////////////////////////////////////////////////
	TextureContainer::TextureContainer()
	{
	}

	////////////////////////////////////////////////////////////////////////////////////////////////////
	TextureContainer::~TextureContainer()
	{
		clear();
	}

	////////////////////////////////////////////////////////////////////////////////////////////////////
	Texture* TextureContainer::load(const std::string& filename)
	{
		// テクスチャが読み込み済みか調べます
		std::map<std::string, Texture*>::iterator i = textures.find(filename);
		if(i != textures.end())
		{
			i->second->retain();
			return i->second;
		}
		else
		{
			Texture* texture = new Texture();
			if(texture && texture->load(filename))
			{
				// テクスチャリストに追加
				textures.insert(std::pair<std::string, Texture*>(filename, texture));
				return texture;
			}
			else
			{
				delete texture;
				return NULL;
			}
		}
	}

	////////////////////////////////////////////////////////////////////////////////////////////////////
	void TextureContainer::unload(Texture* texture)
	{
		if(texture)
		{
			for(std::map<std::string, Texture*>::iterator i = textures.begin(); i != textures.end(); i++)
			{
				if(i->second->getName() == texture->getName())
				{
					if(i->second->unload() == 0)
					{
						textures.erase(i);

						delete i->second;

						break;
					}
				}
			}
		}
	}

	////////////////////////////////////////////////////////////////////////////////////////////////////
	void TextureContainer::clear()
	{
		for(std::map<std::string, Texture*>::iterator i = textures.begin(); i != textures.end(); i++)
		{
			delete i->second;
		}
		textures.clear();
	}
}
